Member Avatar for MyToshiba

Hi all..

I have a problem as follows..

When I connect the AC power supply to the laptop, the AC power light glows green... if the battery is there.. the battery is charging. When I press ON button, the AC power light turns to amber/orange and blinking and the laptop won't start... nothing at all.

Blinking pattern: 5 blink then 3 blink stop for a while then repeat the same blinking pattern.

Hope someone can help me or give some ideas..

Thanks.

  • 4 Contributors
  • 3 Replies
  • 232 Views
  • 10 Months Discussion Span
  • Latest Post Latest Post by david2798

Dani AI

Generated

Short, focused checklist that goes beyond the earlier replies from and — ordered so each test rules something in or out.

Start with what the Tecra 8100 manual actually documents: the DC‑IN and battery LEDs show charge/state (steady amber/green or flashing amber for low battery) and the manual lists basic AC/battery checks and troubleshooting steps to try before service. (opweb.de)

  1. Verify the AC adapter first (expected for this model: ~15 V DC, 4–5 A). Measure at the barrel with a multimeter (DC volts, black to sleeve, red to center pin). If the adapter does not show roughly the rated voltage, the adapter is the likely culprit. If it does, note the exact reading and polarity before moving on. (savingology.com)

  2. Hard‑reset / power‑drain (quick, safe): disconnect AC and battery, press and hold the power button ~20–30 seconds, then reconnect AC (no battery) and try to power on. This clears residual charge and can recover an EC/logic hang. If the machine then behaves differently (fans spin, POST sounds, different LED pattern) that narrows the fault. (dell.com)

  3. Minimal hardware boot: with AC only (battery out), remove HDD and any PC cards, reseat or swap memory modules (the manual describes memory reseat/POST checks). Try booting with one RAM module at a time. Listening for beeps or watching LED changes after each change helps isolate RAM/HDD versus board faults. (opweb.de)

If the adapter measures correct, the hard reset and minimal‑boot don’t change the 5/3 repeating blink pattern, and there is no fan/HDD activity, this usually points to a board/embedded‑controller failure — not a user repair unless experienced with soldering or board‑level diagnostics. If data is the priority, remove the drive now and image it with a USB enclosure before further teardown. (ifixit.com)

Cautions: avoid shorting the adapter or probing under power if unsure, note and report exact meter readings and which LEDs/fans do or do not run when you take the machine to a shop — that information speeds diagnosis.

Recommended Answers

All 3 Replies

Member Avatar for BuggZ

Follow the troubleshooting procedures at this Toshiba link:

Member Avatar for tridoc

I have the same problem. have you been able to rectify yours? If so, could you please advise me how?
Regards
tridoc

Member Avatar for david2798

I have the same problem. have you been able to rectify yours? If so, could you please advise me how?
Regards
tridoc

:p
Hi,

I have been fixing and selling laptop and batteries for several years, and seen some of these problems. Here are my suggestions:

1, most likely battery problem; borrow someone's good battery, or go to a small computer shop to check the battery before you buy.

2, less likely m/b problem.


David,

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.